Question

A multinational hires its team to do a consultancy. The multinational has 36 stores. The 36 stores sold per week on average 152300 us with a standard deviation of 53000 us. The multinational is with the hesitates to close or keep stores open, the goal that the multinational is that the average sales of the 36 stores is in a 80% and 90% probability interval.
In addition, it asks you to give the concept based on at least two intervals of confidence and that the sales averages are between those two intervals.
Is it possible to find the average in "us" to meet the proposed by the multinational? What average would you propose to keep stores open in such a case that the concept is favorable? Yes it is unfavorable Why should stores be closed?

Answer 1